As shown below, a 40 kg student is stationary and alone on a frozen, frictionless pond wi nothing but a 5 kg ball. The student would like to return home. 中

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter10: Systems Of Particles And Conservation Of Momentum
Section: Chapter Questions
Problem 43PQ: A 44.0-kg child finds himself trapped on the surface of a frozen lake, 10.0 m from the shore. The...
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9 As shown below, a 40 kg student is stationary and alone on a frozen, frictionless pond with
nothing but a 5 kg ball. The student would like to return home.
According to the above information and image, what can the student do to get back home?
A Slowly walk towards the house
Throw the ball toward the house
C Throw the ball directly away from the house
D Swing the ball in a circular path
Transcribed Image Text:9 As shown below, a 40 kg student is stationary and alone on a frozen, frictionless pond with nothing but a 5 kg ball. The student would like to return home. According to the above information and image, what can the student do to get back home? A Slowly walk towards the house Throw the ball toward the house C Throw the ball directly away from the house D Swing the ball in a circular path
A box is sliding on a frictionless surface when it suddenly begins to rain heavily. If the
downpour of rainfall falls vertically into the box, gradually filling it, what would happen to the
speed of the box?
10
F The speed of the box would increase because of conservation of momentum.
G The speed of the box would decrease because of conservation of momentum.
The speed of the box would increase because of the conservation of energy.
J
The speed of the box would decrease because of the conservation of energy.
Transcribed Image Text:A box is sliding on a frictionless surface when it suddenly begins to rain heavily. If the downpour of rainfall falls vertically into the box, gradually filling it, what would happen to the speed of the box? 10 F The speed of the box would increase because of conservation of momentum. G The speed of the box would decrease because of conservation of momentum. The speed of the box would increase because of the conservation of energy. J The speed of the box would decrease because of the conservation of energy.
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